Ok, an ideal Esplora test program would write to a Processing or Serial monitor. But that requires alot of work and would not be pretty.

So grab an Adafruit 1.8" TFT LCD display breakout (not the shield, breakout - at http://adafruit.com/products/358) Solder header in the holes and plug into the Esplora on the right side black header pins on Esplora. Download EsploraTest.ino from Github at https://github.com/TheKitty/EsploraApps

Using the program with pictures is available at http://21stdigitalhome.blogspot.com/2013/02/arduino-esplora-with-display-exercise.html